Inspectioneering
Inspectioneering Journal

Pendulum Effect

Part 1

By Del Underwood at Det Norske Veritas. This article appears in the January/February 1997 issue of Inspectioneering Journal
This article is part 1 of a 3-part series.
Part 1 | Part 2 | Part 3

 

Back before I became a consultant in 1962, I was employed by TransCo. My boss had a number of very descriptive expressions for commonly encountered problem conditions with reciprocating compressors. One of them that I have always appreciated over the previous 30 plus years was his term for pendulum action of a large unsupported mass on the end of a vibrating pipe. He called it "a billiard ball on the end of a fly rod". You avid fisherman will appreciate that one.

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